The grips are made from TPR rubber, and use high Aluminum Alloy on two-side. Fits for any standard straight bicycle or stunt scooter handle bar, MTB Bike BMX BikeBicycle Handlebar Feature - Ergonomic design, mold-in production, good fit to palm; - Shock absorption and efficiently disperse compression; - Choice TPR rubber material, no bad smell, comfy to grip; - Patten surface texture for firm grip, non-slip; - Black grey dual color tones give good look; - Well-shaped grip provides firm and confortable gripping. Product Material Rubber + Aluminium alloy. Colour available-black, blue,red and white